If you dont know what is PXE Knife, better visit http://pxeknife.erebor.org/ because I will be assuming you know all on that site.
$ mkdir /home/myname/for_pxe_knife/ $ wget http://pxeknife.erebor.org/releases/pxeknife-0.0.2.tar.gz $ cd /home/myname/for_pxe_knife/ $ tar -xvf ../pxeknife-0.0.2.tar.gz $ cp /usr/lib/syslinux/pxelinux.0 . $ cp /usr/lib/syslinux/*.c32 . $ cp /usr/lib/syslinux/memdisk . $ mkdir pxelinux.cfg $ vi pxelinux.cfg/default
Now, the content of my pxelinux.cfg/default file is
DEFAULT menu.c32
PROMPT 0
TIMEOUT 100 #this is optional - will start the default after 10 seconds
MENU TITLE --== Main Menu ==--
#this allows you to exit the pxe stack and pass booting to the local system
LABEL bootlocal
MENU DEFAULT
MENU LABEL Local Boot
localboot 0
#load pxe knife
LABEL pxeknife
MENU LABEL PXE Knife --->
kernel menu.c32
append pxeknife/pxeknife.conf
$ cd gpxe/bootables/ $ qemu-img create -f raw testing.img 10M
Here is the code which is working for
$ qemu -net nic -net user -boot n -hda ./testing.img -bootp /pxelinux.0 -tftp /home/myname/for_pxe_knife/ $ qemu -net nic -net user -fda ./gpxe.dsk -bootp /pxelinux.0 -tftp /home/myname/for_pxe_knife/
for following version of qemu version qemu version 0.10.0
$ qemu QEMU PC emulator version 0.10.0, Copyright (c) 2003-2008 Fabrice Bellard
As per me following command should have worked, but It did not worked
$ qemu -bootp tftp://10.0.2.2//pxelinux.0 -tftp /home/myname/for_pxe_knife/ -fda gpxe.dsk
at same time command
$ qemu -bootp /pxelinux.0 -tftp /home/myname/for_pxe_knife/ -fda gpxe.dsk
works.
Problem faced is,
it successfully downloads the pxelinux.0 and executes it,
but it fails when it is downloading pxelinux.cfg/default
It gives an error saying
TFTP prefix: tftp://10.0.2.2// Trying to load: pxelinux.cfg/default Unable to locate configuration file Boot failed: press a key to retry, or wait for reset...
Note : There are some versions of qemu for which network boot option did not worked.
$ qemu -net nic -net user -boot n -hda ./testing.img -bootp /pxelinux.0 -tftp /home/minix-pravin/Etherboot/v2/pxeknife/pxeknife/ No valid PXE rom found for network device
Above error came for qemu version 0.9.1
$ qemu QEMU PC emulator version 0.9.1, Copyright (c) 2003-2008 Fabrice Bellard
But if you provide gpxe.dsk instead of ./testing.img it uses gpxe.dsk stack and boots properly.
$ qemu -net nic -net user -fda ./gpxe.dsk -bootp /pxelinux.0 -tftp /home/minix-pravin/Etherboot/v2/pxeknife/pxeknife/